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Posted (edited)

Specifications and features:

All noise measurements are unweighted.

Input Sensitivity: 0 dBm for maximum output.

Output Power: 400 watts RMS. This is into 2, 4, or 8 ohms.

Noise: -80 dB

Fuses: 1 external 12 amp for 100 – 120 VAC operation.
(6 amp for 220 – 230 VAC operation)
1 internal redundant per above
8 internal .250 Fast-Blo. One per tube.
1 internal 15 amp Slo-Blo.
1 internal 2 amp Fast-Blo.

Power tubes: Eight premium Svetlana 6550C power tubes.

Driver tubes: Two 12AX7 and one 12AU7.

Transformers: Custom designed toroidal output transformer for ultra-wide
bandwidth. Power transformer is also toroidal.

Outputs: 2 ¼” outputs.

Inputs: One ¼” unbalanced input and one input thru for patching a
preamp signal thru to an additional power amp

Output Impedance Selector: A three-position switch provides switching for
two, four, or eight ohms.

Cooling: Two ultra-low noise fans regulate the operating temperature
of the amp.

Edited by Fleabay85
Posted (edited)

I used the 680/728 (see profile pic) with a pair of GS410's and it was simply the loudest amp I've ever heard.... Thick notes that you could reach out and touch !

Played a ton of shows with my U2 tribute band - Vertigo U2 and it never missed a beat !!

Long before Adam Clayton started to use Aguilar !!

Ultimately we were playing too often back then to lug that Rigg around 3-4 nights a week....

Now downsized to DB751/GS412 ;-)

There's some audio on www.vertigou2.co.uk

with the 680/728

Regards
Mark

Edited by Marcus
  • 3 weeks later...
Posted

That would be painful to ship.
Why don't you just buy my DB659 and you can remain in tone heaven for the rest of your days...

Posted (edited)

I use eden XLT and I have two vt300 (one of them is for sale)

this is the only reason why I want to sell my db728...I loved the preamp of my db359...so the 659 is very fine preamp.

Edited by Fleabay85
  • 5 weeks later...
  • 2 weeks later...
  • 1 month later...
Posted

[quote name='Roland Rock' timestamp='1412072934' post='2565289']
I don't really need it, I can't afford it, but I really, really want it
[/quote]

Buy it! I have one and it's immense:)

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